The ornamental design for swab packaging, as shown and described.
FIG. 1 is a top view of a swab packaging showing my new design;
FIG. 2 is a bottom view of thereof;
FIG. 3 is a top perspective view of thereof; and,
FIG. 4 is a bottom view of FIG. 1 shown in a preferred environment for ease of illustration.
The broken lines shown in the drawing disclosure are for illustrative purposes only and form no part of the claimed design. The broken lines shown at the bottom end of the swap packaging is meant to represent perforation.